Your first point is not a slip-up. Notice how quickly they accelerate from standing? This must have been done with special effects, hence their speen down the corridor must have been intentional - They are Jedi after all!

Jax- Actually the lightsaber's color is relative to one thing- the crystals that reside inside. Although the movies dont touch the subject, a lot of the books do. Basically, according to the books, Jedi have to search for the crystals on some planet, but Sith just create the crystals themselves.
Again, none of this has been confirmd by George Lucas, to my knowledge anyway.

I would say that the 'Fade Away' method of funerals came along later on, when the Jedis realized that it took forever for them to burn, it was wayyyy too expensive to perform, the fade away was cheaper...;)

1) Yuk-Fai, YOU ARE WRONG!!!!! Qui-Gon Jinn was a Jedi Master. Obi-won was not. If you don't believe me, check out the official star wars site, under characters. Also obi-won says that Qui-Gon could be on the council, if only did what the council said. So There!!!
2)When Qui-Gon is being burned, his lips do not move. It is the heat from the fire. Like on a hot day when you see waves coming off the street.

In an interview Lucas said that the reason Qui-Gon did not dissapear is because its an art that Yoda only teaches to a select few (not loosing your identity after death).
Yoda tought Obi-Wan and Anakin but diddnt have the chance to teach Qui-Gon.

ok the reason Qui-Gon doesn't dissappear in Episode I is because he hasn't learn that path yet. After he learns the path of immortality in the afterlife, he comes back to teach it to Yoda and Obi-Wan during the break between Episode III and Episode IV.

As far as light saber colors, there have only been three depicted in the actual films. Now, in the expanded universe stuff, we HAVE seen other colors, but the rule on that is that they're "Official until George says otherwise." One of the Making of videos has him saying that there were originally supposed to be only blue for Light Side and red for Dark Side. (And seeing all of the other allusions to the American Revolution in Episodes IV-VI, this works out.) However, when they returned to Tatooine for Jedi, the blue didn't show up well against the desert background, so it was written in that there was a renegade faction of the Light Side that didn't quite follow the Jedi Code and used green lightsabers. (Part of my clone theory above.) All of the other colors that have been mentioned have been in the expanded stories.

OK After Episode III we now know why Qui Gon didnt dissappear. At that time Jedies didnt reach that state of "evelution", but Qui Gon found a way to use the force to come back to a state of "spiritisim". Yoda found out about this from Qui Gon through meditation, as seen in episode II when Anikin kills the sand people. At the end of Episode III Yoda tells Obi Wan of this and instructs him to study this way to be immortal. So by the time Obi Wan and Yoda die, they already know the way to evolve if you will into this spirit state and dissappear upon death. Vader did not dissappear when he died, remember Yoda and Obi Wan dissappeared immeadiatly after they died. Vader dies in Lukes arms and Luke lays him down on the ramp of the ship, body still there. He burns Vaders body and armor probablly the way the Jedi before him did.

you obviously don't know very much about Star Wars or jedi powers. If you've played any of the games or read anything about it you would know they have many Force abilities, such as speed, levitaion , etc.....
duh

He doesn't die immediately, so he doesn't disappear straight away. Also, if you remember, Darth Vaders body didn't disappear, it was burned. I reckon that the people who disappear upon death are also the ones that reappear as 'holographic images' later on in the film. Anakin reappears at the end of ROTJ, but not as Darth Vader, so maybe this theory works.

Vader did disappear, luke just burned the suit, it is in one of the books,
and all jedi dissappear, trance or not, Dark Side adepts explode in a burst of
dark side energies, as witnessed in ROTJ and the book I,JEDI (when Corran relives The bird Jedi Memories)

One of my friends happens to be a super expert on Star Wars, and the real reason Qui Gon doesn't disappear is because he uses the Force differently. There are two forms under which Jedi operate. Under one of these forms, the Jedi9 are absorbed into the Force when they die. In the other, they are not. Qui Gon was one of the 'Not' ones.

Don't worry guys! I read something at theforce.net that says in an interview that the argument about the disappearing Jedi is explained (along with a whole host of other Star Wars jedi stuff) in Episode II. So just be patient.

To bring together in intelegible english what Kanada and Rowdyruffboy
The "disappearing" thing is rumored to be a ritual sucicide to become one with the force
ie Obiwans speil "If you strike me down i will become more powerful...blahblah"
He didn't actually die at the hands of Darth Vader but killed himself.
Whereas darth maul got hacked in half (notice the expression on his face when he gets hacked, its as if he knew it was coming.

if u r really into star wars then u would know that the only reason that vaders suit was burned is because when they watched the movie they thought that people would wonder what happened to vader...the suit burned was a last minute addition...and as far as the suicide thing goes i have never heard of anything like that....but hey...it's food for thought!

Here's my thoughts.
You never see a Dark Jedi fade... know why? Because they all happen to fall down conveniently placed pits! ^.^ Seriously, what is it about Dark Jedi and falling into Power Cores? There's no proof that Emperor Palpatine and Darth Maul *didn't* fade, but if they did you didn't see it.
Darth Vader and Qui-gon did not immediately die, once again. As for Qui-gons funeral pyre, I have no idea whatsoever why the guy didn't fade but a lot of the Ideas you guys put forth sound pretty believable.
YES! The next movie will also introduce Boba Fett. I believe I also know Boba Fett's identity though I may be wrong. It would be pretty dang cool if I was right though.
But of all the things I await in the future movies the most longed for is Yoda in a lightsaber battle! (maybe he uses the unsuspected quick-draw in the crotch method, lol!) ^_^

I am Darth Maul is actually correct in his first statement. the "dissapearing act" will be explained in SWII. And Mars Guo is correct as well. if you look closely when Darth Maul's torso and legs fal down the shaft, both dissapear.

Maybe Jedi only disappear when they know they're gonna die!
Think about it:
1. When Obi-Wan died, it was a suicide.
2. When Yoda died, he knew it was his time and told Luke.
3. When Vader died, he also knew and commited suicide by taking
off his mask.
4. When Qui-Gon died, he was mortally wounded very suddenly in the
heat of battle. That's why he didn't disappear. because he didn't
expect it!

Nah... this is not correct. It's on the right track, but, no. It's true that Yoda only taught the disappearing thing to a select few.
Obiwan and Vader didn't commit Suicide. Obiwan let Vader strike him down because it was the only way to ensure Luke's fate (think about this one) that's why he said the words that have been quoted so many times before, "If you strike me down, I shall become more powerful than you can possibly imagine."
Vader didn't commit suicide at all. When Luke cut 'is hand off (for the second time in Vader's life. Athritis my ashh, this has gotta hurt!) that didn't do Vader any bit of good. And when he threw Palpatine into the death star's power core, well, that completely fried the life-support systems that he had been surviving on for all these years. Without those running, his end was nigh anyways. The mask had very little to do with any of it.

light saber colors are determined by who constructs them by using a focusing gym. This is described in the expanded Universe so is not Official as per Lucas, but the color denoting clan or allegiance is not currently being used. The comment of Obi Wan in episode 4 " Will come back more powerful than imagined" originally referred to Splinter of the Minds Eye where Obi Wan Possess Luke and severs vaders arm, George decided not to follow that plot path (where Luke and Leia are not bro and sis) And the idea changed that He would become and ethereal Teacher for Luke and a totally different plot line was created trying to keep continuity in the process. Jedi Fade/explode on death apparently is not the de facto either and will be explained in future movies.

Alot of you people are making up reasons for Qui-Gon not disappearing and you should really start thinking that you could be wrong. People are saying it's because he's not a Jedi Master (which might I add he is), or that he didn't know he was going to die. Heck for all we know it may be becaue he didn't learn how. The truth is there hasn't been any true conformation of the reason so please everyone stop making up crap when you don't even have proof.

The first one isn't really a slip up. They're Jedi, they can do what we poor souls can only dream about. And the second one, well, maybe he's muttering his last prayer or something. How unnatural is this? And Darth Maul doesn't say a word as he is sliced into two halves by Obi-Wan. Maybe the Jedi are a little more expressive about these sort of things than the Sith.

Give this one some thought. (I also want to have it made public record somewhere that I came up with this idea LONG before Episode II came out, because one of my mates always denies that I can make these sorts of connections on my own.)
Point 1: Qui-Gon is a maverick. He doesn't quite follow the Jedi Code (That's why the green saber. Originally, it was supposed to be Blue for Light Side, Red for Dark, but when they filmed ROTJ, the blue didn't work well on the desert background, so it was decided that there was a renegade faction of the Light Side that didn't quite follow the Jedi Code, and they used green lightsabers.) and has his own methods of doing things.
Point 2: Qui-Gon is attuned with the Living Force. If you go back and examine his interactions with Padme, it seems that he is aware that Padme is the Queen, but plays along with the deception. (He's also the only one that isn't shocked when she announces to Boss Nass that she IS the Queen.)
Point 3: Rather than vanishing as soon as the death blow is struck, Qui-Gon clings to life long enough to make Obi-Wan swear to train Anakin. (Just an observation: Was anyone else reminded of Arthur and Bedevere here?)
My Conclusion: Qui-Gon is a clone. Difficult, stubborn, and rebellious, it's my guess that these traits are common to clones, and that's what leads to the Clone Wars. The real Qui-Gon either has been dead for quite some time, or will appear in Episode II or III.

If memory serves me correctly, the actors who've been given lightsabers for episodes 1 and 2 were allowed to choose their own colour of lightsaber, so if Lucas did ever have a colour code for the lightsabers he seems to have abandoned it.

Jedi only disaper if they choes to or have the chanse to. yoda died then disaperd, in star wars Obi-Wan said a little spech if you strike me down i will become evermore porfule the you can emgine and disipers even before the saber passes throw his body and ferther more in dark force 2 the guy thats killed is a jedi but dose not dissapere and Qui-Gon should have bene on the cansole but kept defing there wishes maybe you have to be on the consal to leren all jedi trates. and a basik trat of a jedi is speed and jump ablity otherwise obi-wan would have been able to jump up a levle and out fo the shaft diring the duel of the fates and not all jedi have the same trates ass others.

in reply to the comment about why qui-gon didn't disapear,here is the answer:
when yoda and obi-wan died,they went into a jedi trance so they wouldn't feel any pain when they died and so they would just dissapear.but qui-gon didnt do this,because he was sure he would win.